Nordic Unmanned – Coaxial Configuration Patent

Nordic Unmanned is enforcing a patent they hold on coaxial multirotors. Granted in 2011 to AirRobot a company that Nordic Unmanned bought last year. This patent might be the only part of AirRobot with significant value. To claim that AirRobot invented coaxial rotors is a significant stretch of the truth. From Wikipedia The idea of [...]